export interface ServiceRecord {
    id: string;
    type: string;
    date: string;
    rating: number;
    cost: number;
    duration: number;
    note: string;
}

export interface Customer {
    id: string;
    name: string;
    phone: string;
    gender: string;
    age: number;
    joinDate: string;
    serviceCount: number;
    totalAmount: number;
    memberCard: {
        type: string;
        number: string;
        balance: number;
        points: number;
    };
    packages: Array<{
        name: string;
        used: number;
        total: number;
        startDate: string;
        endDate: string;
        cost: number;
    }>;
    serviceRecords: ServiceRecord[];
    preferences: string;
}
